Supertex, Inc., together with its subsidiary, Supertex Limited, designs, develops, manufactures, and markets high voltage analog and mixed signal integrated circuits (IC) primarily in the United States, China, Singapore, rest of Asia, and Europe. The company offers high voltage analog multiplexer switches, pulsers, beam formers, transmit/receive switches, low noise amplifiers, high-speed MOSFET drivers, and discrete high voltage MOSFETs and arrays for the medical electronics market. It also provides light emitting diode (LED) driver products, such as linear regulators and switching regulators for general lighting in automotive, industrial, and consumer applications; and for backlighting in LCD TVs, monitors, and laptop screens. In addition, Supertex offers electro-luminescent lamps for backlighting hand-held instruments, including cell phone keypads, watches, thermostats, monochrome LED screens, and MP3 players; and driver ICs for driving non-impact printers and plotters. Further, the company provides high voltage amplifier ICs to drive optical micro-electro-mechanical systems for use in optical switching applications in the telecommunications market; high voltage electronic switch ICs for use in telephones; high voltage ICs for use as ring generators; and protection ICs for line cards. Additionally, it offers ICs and DMOS devices primarily for various industrial and other catch-all applications. Supertex markets and sells its products through direct sales personnel, independent sales representatives, and distributors primarily to original equipment manufacturers of electronic products. The company was founded in 1975 and is headquartered in Sunnyvale, California.